Wind-screen, particularly for motor-vehicles.



R. E ROTHE. WIND SCREEN, PARTIOULARLY FOR MOTOR VEHICLES. APPLICATIONFILED MAY 3, 1912.

LU'E'Q53Q, Patented Aug. 19, 1913.

in It Witnesses.-

UNITED STA'lEfi PATENT @Flt fflld RUDOLPH E-MIL ROTHE, F VIENNA,AUSTRIA-HUNGARY.

WIND-SCREEN, PARTICULARLY FOR MOTORFVEHICLES.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, RUooLrH EMIL I Ro'rHE, a subject of the Emperor ofAustriadriver so that the desired effect is not obtained. v It is alsoalready known to replace the .wind screen by fans, that is to say toprovide instead of protectin plates merely fans both in front of andbehlnd the drivers seat but this arrangement does not present anyconsiderable advantage inasmuch as, al-

though it prevents the current of air from reaching the driver directly,very unpleasant eddy currents or drafts are produced.

4 In accordance with the present invention the plate of glass isprovided with an open ing substantially on a level with the drivers faceand eyes and a fan arranged in the said recess.

By virtue of this .arrangement, irrespective of the advantage that theperson seated besidethe driver behind the interrupted glass plate cannotin any way be afiected by the draft, a much steadler motion of the airis obtained as the quantity of air driven forward by the fan in thedirection in which the car is traveling is drawn from an inclosed spacewhich the air can only enter laterally .while when there is no partitiondirect eddy currents are formed as the-air flowing around the fan inopposition to the direction of travel is suddenly deflected from itsdirection by the action of the fan and again driven forward in theopposite direction. With the present construction therefore there isnever a complete reversal of the air current at the place at which itcould be unpleasantly felt by the'occupants of the vehicle the air beinggradually deflected at thisplace so that it flows 0d gently. The airstriking the glass plate is carried along by the draft produced by thefan, that is to say its direction is modified but this is of noimportance as it is precisely at this place that the partition islocated. By means of the present construction therefore clear vision ismaintained during any weather and on the other hand the harmful effectof the draft is entirely avoided.

The invention is illustrated by way of example, as applied to anautomobile, in the accompanying drawing wherein:

Figure 1 represents the arrangement in side elevation and Fig. 2 infront elevation.

In the embodiment of the invention illustrated the wind screen 1 ashitherto gener ally adopted is arranged close to the driver and providedwith an opening substantially opposite his face and on a level with hiseyes, the fan 2 being arranged to rotate therein, as shown. The fan mayeither be driven by means of suitable gear directly off the wheels or byan electric motor to which more or less current is supplied inaccordance with the speed with which the car is traveling for the timebeing.

It is advisable to provide the fan with a free wheel hub so that the fanmay notcome suddenly to rest when the vehicle stops.

What I claim. and desire to secure by Letters Patent of the UnitedStates is In combination, a motor-vehicle, a wind screen formed with anopening located opposite the drivers seat, and a fan arranged in saidopening adapted to produce an air current opposite in direction to thedraft produced by the travel of said vehicle.

In testimony whereof I aflix my signature in presence of two witnesses.

RUDOLPH EMIL RQTHE. Witnesses:

ADA MARIA BERGER, AUGUST FUGGER.

Copies of this patent may be obtained for five cents each, by addressingthe Uommissioner of Patents,

Washington, D. C. a

Patented Aug, t9, 913. Application filed May 3, 1912. Serial No.694,913.

